UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549


                                  SCHEDULE 13G


                   Under the Securities Exchange Act of 1934*


                     Affordable Residential Communities Inc.
--------------------------------------------------------------------------------
                                (Name of Issuer)

                                  Common Stock
--------------------------------------------------------------------------------
                         (Title of Class of Securities)

                                    008273104
--------------------------------------------------------------------------------
                                 (CUSIP Number)


                               September 21, 2006
--------------------------------------------------------------------------------
             (Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule
is filed:

         [ ]  Rule 13d-1(b)

         [X] Rule 13d-1(c)

         [ ]  Rule 13d-1(d)

*The remainder of this cover page shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities, and
for any subsequent amendment containing information which would alter the
disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the Securities Exchange Act of
1934 ("Act") or otherwise subject to the liabilities of that section of the Act
but shall be subject to all other provisions of the Act (however, see the
Notes).







-----------------------                                   ----------------------
CUSIP No. 008273104                     13G               Page 2 of 11  pages
-----------------------                                   ----------------------


---------- ---------------------------------------------------------------------
1          NAME OF REPORTING PERSON
           I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

           Rockbay Capital Management, LP
---------- ---------------------------------------------------------------------
2          CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                     (a) [ ]
                                                                     (b) [X]
---------- ---------------------------------------------------------------------
3          SEC USE ONLY
---------- ---------------------------------------------------------------------
4          CITIZENSHIP OR PLACE OF ORGANIZATION

           Delaware
-------------------- ------ ----------------------------------------------------
                     5      SOLE VOTING POWER

                            0
                     ------ ----------------------------------------------------
     NUMBER OF       6      SHARED VOTING POWER
      SHARES
   BENEFICIALLY             2,145,000
     OWNED BY
       EACH          ------ ----------------------------------------------------
     REPORTING       7      SOLE DISPOSITIVE POWER
      PERSON
       WITH                 0
                     ------ ----------------------------------------------------
                     8      SHARED DISPOSITIVE POWER

                            2,145,000
---------- ---------------------------------------------------------------------
9          AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

           2,145,000
---------- ---------------------------------------------------------------------
10         CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

           N/A
---------- ---------------------------------------------------------------------
11         PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

           5.2%
---------- ---------------------------------------------------------------------
12         TYPE OF REPORTING PERSON*

           IA, HC
---------- ---------------------------------------------------------------------






-----------------------                                   ----------------------
CUSIP No. 008273104                     13G               Page 3 of 11  pages
-----------------------                                   ----------------------


---------- ---------------------------------------------------------------------
1          NAME OF REPORTING PERSON
           I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

           RCM Advisors, LLC
---------- ---------------------------------------------------------------------
2          CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                     (a) [ ]
                                                                     (b) [X]
---------- ---------------------------------------------------------------------
3          SEC USE ONLY
---------- ---------------------------------------------------------------------
4          CITIZENSHIP OR PLACE OF ORGANIZATION

           Delaware
-------------------- ------ ----------------------------------------------------
                     5      SOLE VOTING POWER

                            0
                     ------ ----------------------------------------------------
     NUMBER OF       6      SHARED VOTING POWER
      SHARES
   BENEFICIALLY             2,145,000
     OWNED BY
       EACH          ------ ----------------------------------------------------
     REPORTING       7      SOLE DISPOSITIVE POWER
      PERSON
       WITH                 0
                     ------ ----------------------------------------------------
                     8      SHARED DISPOSITIVE POWER

                            2,145,000
---------- ---------------------------------------------------------------------
9          AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

           2,145,000
---------- ---------------------------------------------------------------------
10         CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

           N/A
---------- ---------------------------------------------------------------------
11         PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

           5.2%
---------- ---------------------------------------------------------------------
12         TYPE OF REPORTING PERSON*

           PN, HC
---------- ---------------------------------------------------------------------





-----------------------                                   ----------------------
CUSIP No. 008273104                     13G               Page 4 of 11  pages
-----------------------                                   ----------------------


---------- ---------------------------------------------------------------------
1          NAME OF REPORTING PERSON
           I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

           Atul Khanna
---------- ---------------------------------------------------------------------
2          CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                     (a) [ ]
                                                                     (b) [X]
---------- ---------------------------------------------------------------------
3          SEC USE ONLY
---------- ---------------------------------------------------------------------
4          CITIZENSHIP OR PLACE OF ORGANIZATION

           United States
-------------------- ------ ----------------------------------------------------
                     5      SOLE VOTING POWER

                            0
                     ------ ----------------------------------------------------
     NUMBER OF       6      SHARED VOTING POWER
      SHARES
   BENEFICIALLY             2,145,000
     OWNED BY
       EACH          ------ ----------------------------------------------------
     REPORTING       7      SOLE DISPOSITIVE POWER
      PERSON
       WITH                 0
                     ------ ----------------------------------------------------
                     8      SHARED DISPOSITIVE POWER

                            2,145,000
---------- ---------------------------------------------------------------------
9          AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

           2,145,000
---------- ---------------------------------------------------------------------
10         CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

           N/A
---------- ---------------------------------------------------------------------
11         PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

           5.2%
---------- ---------------------------------------------------------------------
12         TYPE OF REPORTING PERSON*

           IN, HC
---------- ---------------------------------------------------------------------






-----------------------                                   ----------------------
CUSIP No. 008273104                     13G               Page 5 of 11  pages
-----------------------                                   ----------------------


---------- ---------------------------------------------------------------------
1          NAME OF REPORTING PERSON
           I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

           Jonathan Baron
---------- ---------------------------------------------------------------------
2          CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                     (a) [ ]
                                                                     (b) [X]
---------- ---------------------------------------------------------------------
3          SEC USE ONLY
---------- ---------------------------------------------------------------------
4          CITIZENSHIP OR PLACE OF ORGANIZATION

           United States
-------------------- ------ ----------------------------------------------------
                     5      SOLE VOTING POWER

                            0
                     ------ ----------------------------------------------------
     NUMBER OF       6      SHARED VOTING POWER
      SHARES
   BENEFICIALLY             2,145,000
     OWNED BY
       EACH          ------ ----------------------------------------------------
     REPORTING       7      SOLE DISPOSITIVE POWER
      PERSON
       WITH                 0
                     ------ ----------------------------------------------------
                     8      SHARED DISPOSITIVE POWER

                            2,145,000
---------- ---------------------------------------------------------------------
9          AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

           2,145,000
---------- ---------------------------------------------------------------------
10         CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

           N/A
---------- ---------------------------------------------------------------------
11         PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

           5.2%
---------- ---------------------------------------------------------------------
12         TYPE OF REPORTING PERSON*

           IN, HC
---------- ---------------------------------------------------------------------





Item 1
          (a)      Name of Issuer

                   Affordable Residential Communities Inc. (the "Company")

          (b)      Address of Issuer's Principal Executive Offices

                   600 Grant Street
                   Suite 900
                   Denver, CO 80203

Item 2

          (a)      Name of Person Filing

                   This statement is filed by the entities and persons listed
                   below, who are collectively referred to herein as "Reporting
                   Persons," with respect to shares of Common Stock (as defined
                   in Item 2(d) below) of the Company (the "Shares"):

                   Investment Manager
                   ------------------

                   (i)  Rockbay Capital Management, LP, a Delaware limited
                        partnership (the "Investment Manager"), with respect to
                        the Shares held by certain investment vehicles directly
                        or indirectly advised by the Investment Manager (each a
                        "Rockbay Fund").

                   General Partner
                   ---------------

                   (ii) RCM Advisors, LLC, a Delaware limited liability company
                        (the "General Partner"), which serves as the general
                        partner of the Investment Manager, with respect to the
                        Shares held by each of the Rockbay Funds.

                   Reporting Individuals
                   ---------------------

                   (iii) Mr. Atul Khanna ("Mr. Khanna"), a United States
                        citizen, with respect to the Shares held by each of the
                        Rockbay Funds.

                   (iv) Mr. Jonathan Baron ("Mr. Baron"), a United States
                        citizen, with respect to the Shares held by each of the
                        Rockbay Funds.

                   Mr. Khanna and Mr. Baron are collectively referred to as the
                   "Reporting Individuals."

                   The Investment Manager directly or indirectly serves as the
                   investment manager to each of the Rockbay Funds. The General
                   Partner serves as the general partner to the Investment
                   Manager. Mr. Khanna is the Chief Executive Officer, and Mr.
                   Baron is the Senior Managing Director, of the General
                   Partner.

          (b)      Address of Principal Business Office or, if None, Residence

                   The address of the principal business office of each of the
                   Reporting Persons is:

                   600 Fifth Avenue, 24th Floor
                   New York, NY 10020

                                       6


          (c)      Citizenship

                   Citizenship is set forth in Row 4 of the cover page for each
                   Reporting Person hereto and is incorporated herein by
                   reference for each such Reporting Person.

          (d)      Title of Class of Securities

                   Common Stock, $0.01 par value per share ("Common Stock")

          (e)      CUSIP Number

                   008273104

Item 3.   If this statement is filed pursuant to Sections 240.13d-1(b) or
          240.13d-2(b) or (c), check whether the person filing is a:

          (a)  [ ] Broker or dealer registered under Section 15 of the Act.
          (b)  [ ] Bank as defined in Section 3(a)(6) of the Act.
          (c)  [ ] Insurance Company as defined in Section 3(a)(19) of the Act.
          (d)  [ ] Investment Company registered under Section 8 of the
                   Investment Company Act of 1940.
          (e)  [ ] Investment Adviser in accordance with
                   Rule 13d-1(b)(1)(ii)(E).
          (f)  [ ] Employee Benefit Plan or Endowment Fund in accordance with
                   13d-1 (b)(1)(ii)(F).
          (g)  [ ] Parent Holding Company or control person in accordance with
                   Rule 13d-1 (b)(1)(ii)(G).
          (h)  [ ] Savings Association as defined in Section 3(b) of the Federal
                   Deposit Insurance Act.
          (i)  [ ] Church Plan that is excluded from the definition of an
                   investment company under Section 3(c)(14) of the Investment
                   Company Act of 1940.
          (j)  [ ] Group, in accordance with Rule 13d-1(b)(1)(ii)(J).

Item 4.   Ownership

          The information required by Items 4(a) - (c) is set forth in Rows 5 -
          11 of the cover page for each Reporting Person hereto and is
          incorporated herein by reference for each such Reporting Person.

          The Investment Manager, which serves directly or indirectly as the
          investment manager to each of the Rockbay Funds, may be deemed to be
          the beneficial owner of all such Shares owned by the Rockbay Funds.
          The General Partner, as general partner to the Investment Manager, may
          be deemed to be the beneficial owner of all Shares owned by the
          Rockbay Funds. Each of the Reporting Individuals, as an officer of the
          General Partner with the power to exercise investment discretion, may
          be deemed to be the beneficial owner of all Shares owned by the
          Rockbay Funds. Each of the Investment Manager, the General Partner,
          and the Reporting Individuals hereby disclaims any beneficial
          ownership of any such Shares.

Item 5.   Ownership of Five Percent or Less of a Class

          If this statement is being filed to report the fact that as of the
          date hereof the reporting person has ceased to be the beneficial owner
          of more than five percent of the class of securities, check the
          following:  [ ]

Item 6.   Ownership of More than Five Percent on Behalf of Another Person

          Not applicable

Item 7.   Identification  and  Classification  of the  Subsidiary  Which
          Acquired the Security  Being Reported on by the Parent Holding
          Company

          Not applicable

                                       7


Item 8.   Identification and Classification of Members of the Group

          Not applicable

Item 9.   Notice of Dissolution of Group

          Not applicable

Item 10.  Certification

          Each of the Reporting Persons hereby makes the following
          certification:

          By signing below I certify that, to the best of my knowledge and
          belief, the securities referred to above were not acquired and are not
          held for the purpose of or with the effect of changing or influencing
          the control of the issuer of the securities and were not acquired and
          are not held in connection with or as a participant in any transaction
          having that purpose or effect.


                                       8






                                   SIGNATURES

After reasonable inquiry and to the best of my knowledge and belief, I certify
that the information set forth in this statement is true, complete and correct.

Dated: September 28, 2006

                                  ROCKBAY CAPITAL MANAGEMENT, LP
                                  By: RCM Advisors, LLC


                                  By:  /s/ Atul Khanna
                                       -----------------------------------------
                                       Atul Khanna
                                       Chief Executive Officer


                                  RCM ADVISORS, LLC


                                  By:  /s/ Atul Khanna
                                       -----------------------------------------
                                       Atul Khanna
                                       Chief Executive Officer


                                  /s/ Atul Khanna
                                  ----------------------------------------------
                                  Atul Khanna


                                  /s/ Jonathan Baron
                                  ----------------------------------------------
                                  Jonathan Baron


                                       9




                                  EXHIBIT INDEX

Exhibit 99.1   Joint Filing  Agreement,  dated  September  28,  2006,  by and
               among  Rockbay  Capital  Management,  LP, RCM Advisors, LLC,
               Atul Khanna, and Jonathan Baron


                                       10